| Since the least-order system matrix representation of the distillation column generated in Section 2.3 is in state-space form, the corresponding state-space model can be readily constructed. Here is the resulting 9th-order state-space model. | Out[3]= |  | 
 These are the poles (eigenvalues) of this model. | Out[5]= |  | 
 These are the desired closed-loop poles, produced by replacing the two slowest open-loop poles by poles at -0.01. | Out[7]= |  | 
 This is a full-rank state-feedback compensator such that the resulting closed-loop system will have the desired poles (see Section 6.3). | Out[10]= |  | 
 This closes the feedback loop. | Out[13]= |  | 
 The constant state-feedback compensator has achieved the desired closed-loop system poles. | Out[15]= |  | 
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